I am scanning in a quiz and it's displaying the student ID and indicating that they got every question wrong. When I look at what it marked for the student, their answers are correct! I checked my key and it matches up to the student's input. Any idea what I'm doing wrong?

I've noticed a similar situation as well, but it's not all the answers. Once in awhile (maybe 1 out of 20 QKs) will mark answers wrong/blank. I then have to rescan or manually input answers. This has only happened after the new update.